Car-underframe.



V. M. SUMMA.

GAR UNDERFBAME.

APPLICATION FILED APB.. 2, 1913;

Patented July 8, 1913.

u... -wut W1 TNESSES:

Patented July 8, 1913.

2 SHEETS-SHEET 2.

V. M. SUMMA.

CAR UNDERPRAMB.

APPLICATION FILED APR. 2. 1913. 1,066,550.

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NN n A I. I@ @N0 @WM I @Ngnmmm l INVENTOR. WITNESSES: ULL M. W d*@XI/@MM BY ATTORNEYS.

. UNIrEn STATES' .PATENT OFFICE.

'VICTOR-M sUMMA, or s'. LOUIS, MISSOURI, AssIGNoR 'ro AMERICA1I` can ANIFOUNDRY coMrANY, or sT'. LOUIS, MISSOURI, A conPoRA'rIoN or NEW JERSEY.

' A CARUNnERFRAME;

1,066,550, l speciacftiqn of Lettersratent. Patentedgulyg, 1913 i YApplication med Aprile, 1913. serialnavssez.

certain new -and useful Improvements in Car-Underframes, of which thefollowing is a full, clear, and exact descriptiomnsuch as will enable`otl'iers skilled in the artto which it ap'pertains toinake and to usethe sa me, reference being had tot-he accompanying-drawings, whichillustrate the preferred form of theinrention, though .it is to be un#derstood that the inyention 1s not limited to the exact details ofconstruction shown Aand described; as it is obvious thatfrariousmodifications thereof will occur to persons skilled 1n the art.

In said drawings: Figure 1 is a. plan view partly in horizontal sectionof theA end portion of` an underframe, showing al bolster connectedtherewith, as hereinafter described. Fig. 2 is a central, longitudinal,sectional view of the structure shown in Fig. 1. the section being takenon lineQ-Z of Fig. 1. Fig. 3 is a plan viewsomewhat simi-l lar to F ig.1, with the exceptionthat in Fig. 1 all ofihe draft sills hereinafterreferred yto are shown and only a part ofthe bolster, whereas in Fig. 3the draft sills are cut off and one-half of a bolster is shown with afragment of a side sill connected thereto, Fig. 4 is a transverse,`sectional view, the sectien being taken on line 'lt-t of Fig. 3.

The invention herein specifically shown and described an amplificationof the inventive idea disclosed in my application for Letters Patent,Serial No. 552,507, filed March 31, 1910. for car `underframe, andincludes the .method of connecting with the sills of an underframe abolster, as indicated in said application, details of constructiondiffering, among other things, as follows:

In the earlier application a single cast center sill is disclosed, whichsingle sill is bifui-cated within the bolsters; that is, commencing at aportion of the sill before the. sill reaches the holsters, and connectedwith the bifurcated portion in the earlier appli vcation is a pair ofchannel-shaped draft sills, the bifurcated extensions of the center silland the draft sill both lapping and being connected directly to abolster.

The present invention is specific to spaced center sils A-Ag that is, tocenter sill members comprising spaced sections, which may ferred, whichsections are separately formed and preferably extend from between thedraft sills vat each.- 'end of '.-the car continu ously: across the`intervening space, -to,'the ends of which sections are attached draftsills, 'the draft sills lapping the end portions of the center sills,which latter have their vWebs longitudinally slotted,in such manner ,asto`close'the slots in .the center sills after be either rolled or builtup., as may be pre?.I

a bolster has been inserted, `as hereinafter described and as indicatedin said earlier application. 1

In the specificembodiment of the invenf `tion disclosed in thedraw-ings'the center sillscomprise spaced' built up channelshapedsections comprising a-plate or web Vportion 1, which is slottedlongitudinally to its end, as indicated 'at 2 inv Fig.'2 ofthe drawing,and 'connected with the Web l are reinforcing angles 3--3, preferablyrolled angles. The center sills A-A may be A'of uniform depth, or deeperat the middle, asA may be desired, and it isv evident that Where thecenter sills are of uniformi `depth they may be formed fromcommercially-rolled sections or from pressed sections, which may beeither channel-shape,`Z-shape, or of any other' suit-able form in crosssection..

The draft sillsl 4 are shown as formed of Z-shape in cross section, andmay be either rolled or pressed or built. up, as may be desired, thoughfor convenience of manufacture and to secure the desired vwidth offlanges, a pressed section is preferred, said section having a' topflange 5, bottom .Harige G and vertical web portion 7, to the latter ofwhich there is shown att-ached a conventional form of draft lug 8 inFigs. 1 and Q, said lug being broken off in Fig. 3. The bolster used inthis combination is preferably acastfmember, indicated generally by thenumeral 10, and comprises acontinuous` top portion which includes theflange `11, bestI shown in Fig. 4, which tiange is continuous from endto end of the bolster. Between. the center sills this't-op member isreinforced, as shown in section in Fig. 2, by longitudinally extendingribs or vertical anges, and between the-center sills there is connectedwith the middle portion of said top member 11 a depending apronlikeextension 12, the object of which will be hereinafter cxplained.- .l

Connected with the continuous top' Harige vbefore referred to are sidebearing extensions.l5l and combined jacking cast-ing and ropingstapleA16, to the latter of which and Vto the 'end ,face and top' end portion.ofA the outergend o f-tlie bolster diaphragms, there is shown connectedZ-sliaped Vside sill 17,

which conforms to the contour of the outer i 'end of the bolster, thoughit isevident that' any form of sideV sill;- either rolled, upl

. .orplate girder.. may be u sed.`

Between the spaced "center sills and a .compression member 2.0 ot'A thebolster, which provided with flanges 21. Extending longitudinally of thesills and through said flanges 21 rivets 2.21am projected for connectingthe member 2Q .tothe spaced cen# tier sills below `thebifurcation 2therein` thereby forming a spacing member and a compression member'between said sills which, in the preferred embodiment of the vso -i'ngflanges 26, .which are end; portions vvith l .tensions 27 whicliareseated in intresses- 28,

invention, serves as the-only means for'con neeting th'e'holster to saidcenter sills.

.'T-he -illei portion 20'is `lappednhy Vthev apron 12, before referredto,- and. rivets 24:

are'projected horizontally through the vertical apron 12 and anupwardlyfextending' llange 25 ofthe bolster`v filler 20. The filler 2Ois also provided. with outwardly.' extendprovided at their upwar. lydisposed exforined inthe lovversnged portion '|29l of thebolsterdiaphragme 13,- and connecting the langes. with the i'ni'xerxno-stAextensionv of the. ewiges ze farekverucsi belegd-.basi

i "As-the bolsterf-is I 'are continuous from. points intermediate' the 1`biilsiters,.and the end-.sillstlie Aslots -2` the center sillsperiforr'nan important .function .in assein'blugthe parte oftheunderrame, Aduring which, the yfiingiillro the bolsteris 1 slipped intothe ends 'of 'the' slots 2- ofthe f :center sills andeartied, as shownin-Fig.2, 'to the inner' portion, pof,`` saidV slots,' afterl v'vhichthebottomjillerftneiuber 20 ofthe `bolster `isfsli into; position' froinjhelow and carried orwardlyfas shown'in section in Fig. 2,'so that4 itsyertieal flange'f25 will Y lap the depending apron l2,V projecting.

f dov'nwardly Vfrom'-t-heitop flange 11 of the bolster. The anges 25 and12 beingriveted together and-the flanges `21 being connected to" the"webs l ofthe cente'rslls, hold the bolster firmly in position.A Afterthen bolster has been slipped to its operative position, as 'es justdescribed, the draft sills are applied and riveted in the positionsshown-inthe drawings; that is, 'with their web portions T lapping theoutermost slotted portion of the Webs l of the center-sills, in whichosition the draft sills are securedbysnitavle connecting means, asrivets Thus far the invention has lieendescribed with the partsfbeingvasseinl: led in'such'relation that the bolster is projeotedi'into;slots foi-ined inthe center sills, butlitjisA evident that it the draftsills are extended rear- Wardly ofthe bolster', as in said earlier ap iplication, and the center sills are,lc'iiinected ,to extensions-othe'draft-siIls', gvhichvprd ject bet-)veen the holsters, it will not-beneces,- sary" tol slot said center sills, though additionalreinforcement ivouldprobably he re-v quired if `the parts "arearrangedwith slotted draft sills'and lunslotted*center sills. l

To reinforce'the center girder,coinprising the spaced center sills, lhave rovided a bottom tie'plate 40 and a top'tie plate or cover plate4l, and it is evident that the top cover plate nialv'he continuous` it,desired, :from end to end of the center sills.` Y What I claim is A f l,ln combination, a pair of spaced center sills and a pair of spaceddraftfsills con-A nected therewith to forni extensions thereof, one pairof said sills being provided `with longitudinally` extending slots, andthe other pair o tv saidsillsgbein'g arranged t-o 4cover one end of saidslots,-i`i'i v confihinatior'i with a bolster brought-iiito assembledrelation'to said sills by rnovenient longitudinally of the sills. j-

2. In combination 'apair o-'spaced-center ifoo i Asills having -veiticalweb platesjaiidfa'pair' i of spaeed draft vvsill'sfhaving'[vertical'wvebl plates, the plates ofone pair of'. said sills `eing vslotted' and theother of said pair of y sills being-.connected with the Webs of the .Y li slotted sills atvr t-Wosides of saidV slots, in Y l A .continuous atlits upper "portion, from end to. end, andthe center sills land theother of said sills lapping the'slotted -sills at two sides of saidslots,lin combinetion -Withla bolster having a continuous portionspanning said vsills and proiectmg .through and Vbeyond thes'ai'n'e,yand having another portion -interposed between said sills. A. 'f 4.lira-car underframe, spaced center sills the Webs of which arelongitudinally slotted,

a bolster having continuous topp'ortion pro-v -jected into said slot,spaced draft sills cennected with the webs of said center sillsv aboveand below said slots and thereby clos ing the outer ends of the slots,and a portion of said bolster serving as a compression member betweensaid center sills.

5( In combination, spaced flanged center sills and spaced flanged draftsills, the center sills having webs slotted to their ends and the draftsills being connected to said webs to form closures for parts of saidslots, in combination with a bolster having a continuous portionextending through said slots and being seated therein by movementlongitudinally of the sills, and having a portion disposed between saidsills.

6. In combination, spaced flanged center sills and spaced flanged draftsills, the center sills having webs slotted to their ends Aand the draftsills being connected to said webs to form closures for parts of saidslots, in combination with a bolster having a con tinuous portionextending through said slots and being seated therein by movementlongitudinally of the sills and having a portion disposed between saidsills, and a tie plate coilinected to flanges of both pairs of said sils.

7 In combination, spaced channel shaped center sills slottedlongitudinally from their ends, a bolster having a continuous topportion and intermitted flanged diaphragms cooperating with said sills,thel top portion occupying the slots of the sills and the diaphragmsextending away from the sills, said bolster comprising a central-portion connecting the diaphragms with the sills.

8. In combination, spaced channel shaped center sills slottedlongitudinally from their ends,` a bolster having a continuous topportion and intermitted flanged diaphragms cooperating with said sills,the top portion occupying the slots of the sills and the diaphragmsextending away from the sills, said bolster comprising a central portionserving as the sole means for connecting the diaphragms with the sills.

9. In combination, spaced channel shaped center sills slottedlongitudinally from their ends, a bolster having a continuous topportion and intermitted flanged diaphragms cooperating with said sills,the top portion occupying the slots of the sills and the diaphragmsextending away from the sills, said bolster comprising a central portionconnecting the diaphragms with the sills, and Z-shaped draft sillslapping the slotted por tion of the center sills.

10. In combination, shaped channel shaped center sills slottedlongitudinally from their ends, a bolster comprising a single continuousrecessed casting and a filler for said recess and having,r a continuoustop portion and intermitted flanged diaphragms coperating with saidsills the top portion occupying the slots of the sills and thediaphragms extending away from the sills, said bolster filler portionconnecting the vdiaphragms with the sills.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

VICTOR M. SUMMA.

Witnesses OSCAR HOCHBERG, WILLIAM V. MORRISON.

Copies of this patentimay be obtained for ve cents each, by addressingthe Commissioner of Patents,

' Washington, D. C.

